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Technology Interactions ‹ Chapter Title Copyright © Glencoe/McGraw-Hill A Division of The McGraw-Hill Companies, Inc.
Technology Interactions
Computer-aided design uses computer systems to
design products and create the drawings needed for
the products to be manufactured.
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
CAD is the process of !esigning an!!rafting on a compter#
CAD is $ic%er an! more accrate# It
has largely replace! han! !rafting#
&hat Is Compter-Ai!e! Design'
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
CAD A!vantages
(aves time
Is more accrate
Improves team commnications
Can help !etermine if a !esign will
actally wor%
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
The CAD (ystem
Har!ware
) Inpt !evices" sch as a %ey*oar!an! mose
) +tpt !evices" sch as a monitor
an! a printer or plotter
(oftware
The computer is the maincomponent. It has these subsystems:
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Two-Dimensional ,2D CAD
Can show only two !imensions of ano*.ect
) &i!th an! length
) &i!th an! height
) 0ength an! height
1re$ently *eing replace! *y systemsthat can !o *oth 2D an! D !esign#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Three-Dimensional ,D
CAD&ireframe mo!els resem*le 3stic%figres#4
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Three-Dimensional ,D
CAD(rface mo!els can loo% li%e the shapeof the o*.ect#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Three-Dimensional ,D
CAD(oli! mo!els show the shape" area" an!volme of an o*.ect#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
5sing D CAD
Mechanical !esign
CAD/CAM
6api! prototyping
Architectral !esign
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Mechanical Design
This engineering activity incl!es !esign ofin!ivi!al parts" assem*lies" an! entire
!evices#
Design often *egins with compter Ds%etches that are then refine! an! mo!ifie!"
an! then final !etails are a!!e!#
The final step may *e a ren!ering#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
CAD/CAM
This process com*ines compter-ai!e!!esign an! compter-ai!e!
manfactring#
Designs go !irectly from the CADcompter to another compter that
controls the machine that ma%es the
actal part#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
6api! 7rototyping
5ses CAD !ata to create physicalmo!els for commnicating i!eas or to
test !esigns#
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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill
A Division of The McGraw-Hill Companies" Inc#
Architectral Design
Has commercial an! resi!entialapplications#
Can provi!e client,s with realistic
interior an! e8terior appearances of aplanne! strctre#